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Commercial Air Conditioner
Model: AD09/12/14/182XLERA
-12
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2. Installation of air return duct
3. Air duct insulation
Use M8 or M10 suspension screws (4, prepared in the field) (when the suspension screw height exceeds
0.9 m, M10 size is the only choice). These screws shall be installed as follows with space adapting to air
conditioner overall dimensions according to the original building structures.
Use rivets to connect the air return duct to the air return inlet of the indoor unit. The other end connects to the
air return shutter. as shown in Fig.2.
Installation for air duct indoor unit
This type of unit uses circular air duct with its caliber of 180mm.
An additional transitive air duct is necessary for the circular air duct to connect to the air supply inlet. It
should be also connected to its respective air diffuser separately. See Fig.1. Adjust the wind speed of each
air diffuser outlet to keep in line on the whole, so as to meet a demand of the air conditioner in the room.
1. Installation of air discharge duct
Indoor unit
flexible joint or
static pressure
box
transitive air duct
circular air duct
joint of air diffuser
air diffuser
Fig1: Duct connected
indoor unit
air return
shutter
rivet
air return
duct
Fig2: Duct return connected
Insulation layer is needed for air supply and return duct. First, paste a glue nail to the air duct, and then
attach the insulation cotton that has a tinfoil layer and use the glue nail cover to fix. Finally, seal the air duct
interface with tinfoil adhesive tape closely. as shown in Fig3.
galvanized
board
glue nail
insulating
fabric
tinfoil
adhesive tape
glue nail cover
Fig3
Installing the suspension screw
Wooden structure
A square wood shall be supported by the beams and then set the suspension screws.
Square wood
Suspension
screw
Beam